Relates to b071548
- Fixes an issue where the menu button would be the wrong colour
The navigation was using `!important` in a few places. I've changed the CSS a bit to no longer need these, but that means I've made some selectors slightly more specific.
The use of `!important` was to get around the hover state being persisted when the menu was opened but the mouse hadn't moved, which meant the menu button kept its white background when it should be black.
iMaking the hover state only apply when the nav is closed, gets around that.
References #180
- Adds `overflow-x: hidden` to `.site-wrapper` when navigation is open to prevent the menu button flowing into the navigation & covering the 'Menu' title text in Firefox.
Paul Adam Davis